A hot melt adhesive film for bonding an ethylene-vinyl acetate form and a rubber includes a hot melt adhesive film layer and a release film layer. The hot melt adhesive film layer is prepared by the following raw materials in parts by weight: a 60-90 parts by weight of polyethylene-ester copolymer, a 10-40 parts by weight of rubber, a 1-15 parts by weight of thermoplastic polyolefin, and a 5-25 parts by weight of auxiliary. The release film layer is releasably adhered to the hot melt adhesive film layer.

A decorative sheet according to one aspect of the present disclosure comprises a decorative plate and an adhesive layer disposed on a first side of the decorative plate. The decorative plate comprises (A) a decorative layer disposed on a second side from the first side, (B) a core layer made of a prepreg containing a fiber base material, and (C) a balancing layer including mixed paper containing an endothermic metal hydroxide as a base material.

A protective tape that improves solder bonding properties and reduces wafer warping. The protective tape includes, in the following order, an adhesive agent layer, a first thermoplastic resin layer, a second thermoplastic resin layer, and a matrix film layer. The protective tape satisfies the conditions expressed by the following formulae (1) to (3):

Ga>Gb(1)

Ta<Tb(2)

(Ga*Ta+Gb*Tb)/(Ta+Tb)1.4E+06 Pa.(3)

Ga represents a shear storage modulus of the first thermoplastic resin layer at a pasting temperature at which the protective tape is pasted; Gb represents a shear storage modulus of the second thermoplastic resin layer at the pasting temperature at which the protective tape is pasted; Ta represents a thickness of the first thermoplastic resin layer; and Tb represents a thickness of the second thermoplastic resin layer.

A protective tape that improves solder bonding properties and reduces wafer warping. The protective tape includes, in the following order, an adhesive agent layer, a first thermoplastic resin layer, a second thermoplastic resin layer, and a matrix film layer. The protective tape satisfies the conditions expressed by the following formulae (1) to (3):

Ga>Gb(1)

Ta<Tb(2)

(Ga*Ta+Gb*Tb)/(Ta+Tb)1.4E+06 Pa.(3)

Ga represents a shear storage modulus of the first thermoplastic resin layer at a pasting temperature at which the protective tape is pasted; Gb represents a shear storage modulus of the second thermoplastic resin layer at the pasting temperature at which the protective tape is pasted; Ta represents a thickness of the first thermoplastic resin layer; and Tb represents a thickness of the second thermoplastic resin layer.

A hot-melt adhesive composition comprises 35 wt % to 40 wt % of petroleum resin, 10 wt % to 14 wt % of polyester elastomer resin, 10 wt % to 14 wt % of ethylene vinyl acetate resin, 14 wt % to 19 wt % of polyether polyol, 15 wt % to 21 wt % of polyester polyol, 8 wt % to 10 wt % of methylene diphenyl diisocyanate, and 0.1 wt % to 0.5 wt % of an amine catalyst, wherein the hot-melt adhesive composition has a melt viscosity of 20,000 cps to 50,000 cps as measured at 150 C.

A decorative multi-layer covering for horizontal and vertical surfaces such as floors and walls, having a decorative layer provided with decorative motifs visible from the outside, a support layer and a self-adhesive layer to be placed on the surface to be covered. The self-adhesive layer has a perforated foam material layer with an outer surface provided with an adhesive. The perforated surface of the foam material layer has between 5% and 95%, and more preferably between 15% and 50%, of the entire surface of one of the two faces of the support layer, which is distributed over several perforations. A stabilising layer can be arranged between the support layer and the self-adhesive foam material layer, the perforations connecting to the lower face of the stabilising layer.

A sealing tape for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The sealing tape includes a substrate layer and an adhesive layer on the substrate layer, wherein the substrate layer includes an ethylene vinyl acetate resin including an ethylene-derived repeating unit and a vinyl acetate-derived repeating unit, and based on 100 wt % of the ethylene vinyl acetate resin, a content (e.g., amount) of the repeating unit derived from the vinyl acetate is about 5 wt % to about 15 wt %.

A sealing tape for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The sealing tape includes a substrate layer and an adhesive layer on the substrate layer, wherein the substrate layer includes an ethylene vinyl acetate resin including an ethylene-derived repeating unit and a vinyl acetate-derived repeating unit, and based on 100 wt % of the ethylene vinyl acetate resin, a content (e.g., amount) of the repeating unit derived from the vinyl acetate is about 5 wt % to about 15 wt %.

Backing films for adhesive tapes are presented, as well as adhesive tapes comprising such backing films, which may include tapes used in construction such as seam sealing tapes, roofing tapes, and flashing tapes. The backing film comprises a core layer, a first skin layer, and optionally a second skin layer, where the backing film has a coefficient of thermal expansion of less than 90 ppm/ C. measured in at least one direction within the plane of the film, and, in some embodiments, a Young's modulus of less than 550 MPa as measured in at least one direction. In some embodiments, the backing film has a coefficient of thermal expansion of not more than 91.8 ppm/ C. and a Young's modulus of not more than 540 MPa as measured in any direction within the plane of the film. In some embodiments, the core layer comprises a polyolefin, and skin layers comprise a thermoplastic elastomer.

Backing films for adhesive tapes are presented, as well as adhesive tapes comprising such backing films, which may include tapes used in construction such as seam sealing tapes, roofing tapes, and flashing tapes. The backing film comprises a core layer, a first skin layer, and optionally a second skin layer, where the backing film has a coefficient of thermal expansion of less than 90 ppm/ C. measured in at least one direction within the plane of the film, and, in some embodiments, a Young's modulus of less than 550 MPa as measured in at least one direction. In some embodiments, the backing film has a coefficient of thermal expansion of not more than 91.8 ppm/ C. and a Young's modulus of not more than 540 MPa as measured in any direction within the plane of the film. In some embodiments, the core layer comprises a polyolefin, and skin layers comprise a thermoplastic elastomer.